I am a little bit confused. I saw Yahoo, Google Finance and Market Watch all listed the lowest price of spy around 77.73 on 02/05(yesterday). Is it a mistake or SPY really went that low. I saw 5 day charts, the lowest price is around 82. StockChart.com also showed around 82 on their chart? I am now confused who is right and who is wrong? Anybody knows what is going on?